TCppWebBrowser doesn't return XML page ?

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4 total messages Started by Peter Sat, 21 Aug 2004 19:37

#1659

Author: Peter
Date: Sat, 21 Aug 2004 19:37

67 lines
3163 bytes

Hi,

In the spirit of "don't invent the wheel a second time" a friend gave me a
piece of code that I'm trying to use but for the purpose I need it it
doesn't seem to work ?
I works 'nicely' for txt or html files with various content but the moment
the first line says :  <?xml version="1.0" ?> it doesn't work.

See code further in this post.

1) The moment the downloaded file contains <?xml version="1.0" ?> this line
of code fails :

if(SUCCEEDED(HTMLDocument->QueryInterface(IID_IPersistFile,(LPVOID*)&Persist
File)))
     and as you can see this way I cannot save the text to a temp file that
I'm using at the moment (for testing)
     Any idea how I can overcome this problem ?

2) The good-working situation worries me as well actually because I seem to
get an "interpreted" result back.
    In other words, when downloading a .html file all HTML tags and
decorations are gone !  Only filtered text remains.
    When I put the same text in a .txt file for instance I do get the
decorations.
    This leaves me a bit uneasy I can't rely on this as there may be
differences between brower version or additonal installations (maybe ??)
    I'm also never sure then that when they change something subtile on
server side I get something totally different from TCppWebBroweser than
before ??
    What I would like is the FULL and RAW text will all html or xml
decorations
    Can this be done and how ??

The code (cut to the essence) :

// ---
   bool BrowserStatus;
   IHTMLDocument2 *HTMLDocument = NULL;
   IPersistFile *PersistFile = NULL;

   if (!(!pCppWebBrowser->Busy && pOutputStrings && pCppWebBrowser->Document
&&
          String(pCppWebBrowser->LocationURL) != String("about:blank") &&
          SUCCEEDED(pCppWebBrowser->Document->QueryInterface(
          IID_IHTMLDocument2, (LPVOID*)&HTMLDocument))))
   {
      BrowserStatus=BROWSER_NOT_READY;
   }
   else
   {
      BrowserStatus=BROWSER_DATA_READY;


if(SUCCEEDED(HTMLDocument->QueryInterface(IID_IPersistFile,(LPVOID*)&Persist
File)))
      {

         // Save the file content to a temporary file
         PersistFile->Save(WideString(TempFile),false);
         PersistFile->Release();

      }
      else
      {
       }
// ---

Re: TCppWebBrowser doesn't return XML page ?

#1669

Author: Mark Jacobs
Date: Tue, 24 Aug 2004 15:33

52 lines
2628 bytes

On Sat, 21 Aug 2004 21:37:41 +0200, Peter <Peter@smart-projects.net> wrote:

> I works 'nicely' for txt or html files with various content but the  
> moment
> the first line says :  <?xml version="1.0" ?> it doesn't work.

unsigned long mjgeturlconts(AnsiString url,AnsiString fnm)
{
   char *bfr; unsigned long nmbyts=0,ba,br=1; FILE *fp;
   HINTERNET  
hss=InternetOpen("WhateverApp",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);
   if (!hss) { ShowMessage("Could not Open Internet Session"); return 0;}
   HINTERNET hsv=InternetOpenUrl(hss,url.c_str(),NULL,0,0,0);
   if (!hsv) { ShowMessage("Could not Open Service "+url);  
InternetCloseHandle(hss); return 0;}
   InternetQueryDataAvailable(hsv,&ba,0,0);
   if (ba==0) { ShowMessage("No Data Available at "+url);  
InternetCloseHandle(hss); return 0;}
   bfr=(char *)malloc((ba+9)*sizeof(char));
   if (!bfr) { ShowMessage("Not Enough Memory - "+AnsiString(ba+9));  
InternetCloseHandle(hss); return 0;}
   fp=fopen(fnm.c_str(),"wb");
   if (!fp) { ShowMessage("Could not Open File "+fnm); free(bfr);  
InternetCloseHandle(hss); return 0;}
   while (br!=0) { InternetReadFile(hsv,bfr,ba,&br);  
fwrite(bfr,sizeof(char),br,fp); nmbyts+=br;}
   fclose(fp); InternetCloseHandle(hss); hss=NULL; free(bfr);
   return nmbyts;
}

url is the url you are trying to get whatever from, and fnm is the name of  
the file you want to store it in.

HTH
-- 
Mark Jacobs
DK Computing
http://www.dkcomputing.co.uk
markj atty critical dotty co dotty uk

Re: TCppWebBrowser doesn't return XML page ?

#1673

Author: Peter
Date: Wed, 25 Aug 2004 09:15

46 lines
2821 bytes

Thanks
Unfortunately I can't check this out anymore, a trip abroad has been pulled
in, I will check it out in two weeks !

-------------------------------------------------------------
"Mark Jacobs" <markjattycriticaldottycodottyuk> wrote in message
news:opsc8ticwebvaws7@dk-tzx09ucg42z4.s1.sol1.co.uk...
On Sat, 21 Aug 2004 21:37:41 +0200, Peter <Peter@smart-projects.net> wrote:

> I works 'nicely' for txt or html files with various content but the
> moment
> the first line says :  <?xml version="1.0" ?> it doesn't work.

unsigned long mjgeturlconts(AnsiString url,AnsiString fnm)
{
   char *bfr; unsigned long nmbyts=0,ba,br=1; FILE *fp;
   HINTERNET
hss=InternetOpen("WhateverApp",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);
   if (!hss) { ShowMessage("Could not Open Internet Session"); return 0;}
   HINTERNET hsv=InternetOpenUrl(hss,url.c_str(),NULL,0,0,0);
   if (!hsv) { ShowMessage("Could not Open Service "+url);
InternetCloseHandle(hss); return 0;}
   InternetQueryDataAvailable(hsv,&ba,0,0);
   if (ba==0) { ShowMessage("No Data Available at "+url);
InternetCloseHandle(hss); return 0;}
   bfr=(char *)malloc((ba+9)*sizeof(char));
   if (!bfr) { ShowMessage("Not Enough Memory - "+AnsiString(ba+9));
InternetCloseHandle(hss); return 0;}
   fp=fopen(fnm.c_str(),"wb");
   if (!fp) { ShowMessage("Could not Open File "+fnm); free(bfr);
InternetCloseHandle(hss); return 0;}
   while (br!=0) { InternetReadFile(hsv,bfr,ba,&br);
fwrite(bfr,sizeof(char),br,fp); nmbyts+=br;}
   fclose(fp); InternetCloseHandle(hss); hss=NULL; free(bfr);
   return nmbyts;
}

url is the url you are trying to get whatever from, and fnm is the name of
the file you want to store it in.

HTH
-- 
Mark Jacobs
DK Computing
http://www.dkcomputing.co.uk
markj atty critical dotty co dotty uk

Re: TCppWebBrowser doesn't return XML page ?

#1674

Author: Peter
Date: Wed, 25 Aug 2004 09:42

58 lines
3234 bytes

One more thing,
I'm also POSTing data to the url in question !
Can this be done with this code as well ?


-------------------------------------------------------------
"Peter" <Peter@Smart-Projects.net> wrote in message
news:412c5869$1@newsgroups.borland.com...
> Thanks
> Unfortunately I can't check this out anymore, a trip abroad has been
pulled
> in, I will check it out in two weeks !
>
> -------------------------------------------------------------
> "Mark Jacobs" <markjattycriticaldottycodottyuk> wrote in message
> news:opsc8ticwebvaws7@dk-tzx09ucg42z4.s1.sol1.co.uk...
> On Sat, 21 Aug 2004 21:37:41 +0200, Peter <Peter@smart-projects.net>
wrote:
>
> > I works 'nicely' for txt or html files with various content but the
> > moment
> > the first line says :  <?xml version="1.0" ?> it doesn't work.
>
> unsigned long mjgeturlconts(AnsiString url,AnsiString fnm)
> {
>    char *bfr; unsigned long nmbyts=0,ba,br=1; FILE *fp;
>    HINTERNET
> hss=InternetOpen("WhateverApp",INTERNET_OPEN_TYPE_DIRECT,NULL,NULL,0);
>    if (!hss) { ShowMessage("Could not Open Internet Session"); return 0;}
>    HINTERNET hsv=InternetOpenUrl(hss,url.c_str(),NULL,0,0,0);
>    if (!hsv) { ShowMessage("Could not Open Service "+url);
> InternetCloseHandle(hss); return 0;}
>    InternetQueryDataAvailable(hsv,&ba,0,0);
>    if (ba==0) { ShowMessage("No Data Available at "+url);
> InternetCloseHandle(hss); return 0;}
>    bfr=(char *)malloc((ba+9)*sizeof(char));
>    if (!bfr) { ShowMessage("Not Enough Memory - "+AnsiString(ba+9));
> InternetCloseHandle(hss); return 0;}
>    fp=fopen(fnm.c_str(),"wb");
>    if (!fp) { ShowMessage("Could not Open File "+fnm); free(bfr);
> InternetCloseHandle(hss); return 0;}
>    while (br!=0) { InternetReadFile(hsv,bfr,ba,&br);
> fwrite(bfr,sizeof(char),br,fp); nmbyts+=br;}
>    fclose(fp); InternetCloseHandle(hss); hss=NULL; free(bfr);
>    return nmbyts;
> }
>
> url is the url you are trying to get whatever from, and fnm is the name of
> the file you want to store it in.
>
> HTH
> -- 
> Mark Jacobs
> DK Computing
> http://www.dkcomputing.co.uk
> markj atty critical dotty co dotty uk
>
>

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